| rare(adjective, light, thin, exceptional, doubtful) |
| soft(adjective, weak, smooth, gentle, fine) |
| splintery(adjective, state, structure, frailty) |
| tottering(adjective, weakness, feeble, shaky, frail) |
| uncertain(adjective, feeble, doubtful, hesitant, sluggish) |
| unreasonable(adjective, poor, thin, dubious, unlikely) |
| baseless(adjective, poor, negative, unwarranted, untrue) |
| brittle(adjective, weak, delicate, feeble, infirm) |
| contemptible(adjective, poor, miserable, pitiful, desolate) |
| debilitated(adjective, weak, delicate, uncertain, ill) |
| defective(adjective, strong, light, weak, slight) |
| dubious(adjective, extraordinary, unreasonable, amazing, doubtful) |
| faint(adjective, weak, soft, gentle, delicate) |
| foolish(adjective, unimportance) |
| frothy(adjective, light, slight, easy, thin) |
| gimcrack(adjective, weakness) |
| half-baked(slight, detail, trivial, surface, shallow) |
| illogical(adjective, poor, false, unwarranted, justification) |
| immaterial(adjective, light, weak, slight, thin) |
| inept(adjective, poor, implausible, unconvincing) |